Convert 10 Optimism (OP) to Arbitrum (ARB)

Convert Optimism to Arbitrums at the live mid-market rate. Reverse: ARB to OP

Amount

From

10 Optimism =

6.69199039 ARB −1.10% today

1 OP = 0.669199 ARB · 1 ARB = 1.49432 OP

Mid-market rate, updated 06:26 UTC. Paid plans update as often as every 60 seconds. Get OP→ARB rates via API

OP to ARB over the last year

52-week high: 1.75737
52-week low: 0.54432
52-week average: 1.24553
Change over the year: −59.87%

Conversion tables

OP to ARB
OP	ARB
1 OP	0.6692 ARB
10 OP	6.69199039 ARB
100 OP	66.91990393 ARB
1,000 OP	669.19903930 ARB
10,000 OP	6,691.99039300 ARB
50,000 OP	33,459.95196500 ARB
100,000 OP	66,919.90393000 ARB

ARB to OP
ARB	OP
1 ARB	1.49432372 OP
10 ARB	14.94323723 OP
100 ARB	149.43237233 OP
1,000 ARB	1,494.32372330 OP
10,000 ARB	14,943.23723300 OP
50,000 ARB	74,716.18616500 OP
100,000 ARB	149,432.37233000 OP

Get OP→ARB rates via API

The live rate, the rate on any past day or a whole range, for ARB and 170+ other currencies, as JSON. Free plan included. See the exchange rate API.

Get a free API key API documentation

curl https://api.currencyapi.com/v3/latest \
  -G -d base_currency=OP -d currencies=ARB \
  -H "apikey: YOUR-API-KEY"

# the rate on a past day
curl https://api.currencyapi.com/v3/historical \
  -G -d base_currency=OP -d currencies=ARB \
  -d date=2025-10-04 \
  -H "apikey: YOUR-API-KEY"

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Questions about OP to ARB

How much is 10 OP in ARB?

10 Optimism is 6.69199039 Arbitrums at the mid-market rate of 4 October 2026, 06:26 UTC, when 1 OP = 0.669199 ARB.

What was the OP to ARB rate over the last year?

Over the last 52 weeks 1 OP ranged from 0.544321 to 1.75737 ARB, 1.24553 ARB on average.

Which exchange rate is this?

The mid-market rate: the midpoint between what currency markets pay and ask for OP/ARB, without the margin a bank or card issuer adds, so the rate you are charged is usually a little worse.